Not wanting to pour scorn on this, but you’d think that the Authors of a release like this would know the differences between ‘affect’ and ‘effect’.
So they’ve reduced the peak intensity but maintained the perception of loudness by adding a filtered (time delay)diaphragm to the back of the driver. And somehow this is better for your hearing? That’s like saying I’m going to add ballons to the sidewall of your tires that inflate and deflate as you hit bumps - and I’m going to claim you get better MPG.
If you want a more dynamic Thuras function or just want to make the sound more ‘mushy’ just ask for a different driver unit with different impedance characteristics. Knowles do a bucket-load of them. Or how about just doing it in the electronics beforehand, rather than promoting something that doesn’t really reduce the net energy exposure to the ear - meaning that the wearer will think they are getting less exposure due to lower peak values, but end up doing more damage overall.
Just IMHO of course.